S. No

Conc. (µg/ml)

Instrument Model & Make

(UV spectroscopy)

Absorbance

% RSD

1.

3

UV 1800 Shimadzu spectrophotometer

0.1356

0.85

2.

3

Elico Double beam SL 210 UV VIS spectrophotometer

0.1350

0.74

S. No

Conc. (µg/ml)

Instrument Model & Make (RP-UFLC)

Rt

Peak Area (Mean)

% RSD

1.

5

Shimadzu Prominence LC-20AD UFLC system

3.2

20349

0.9

2.

5

Shimadzu LC 20 AD UFLC, Diode array detector

3.19

20299

0.91